Light-transmitting display panel and method for manufacturing the same, and display panel

Patent metadata

Field	Value
Publication number	US-12245451-B2
Application number	US-202117545200-A
Country	US
Kind code	B2
Filing date	Dec 8, 2021
Priority date	Nov 29, 2019
Publication date	Mar 4, 2025
Grant date	Mar 4, 2025

Abstract

A light-transmitting display panel and a display panel. The light-transmitting display panel includes an array substrate; first electrodes located on the array substrate; first light-emitting structures, each of the first light-emitting structures being located on one of the first electrodes; and a second electrode layer group located on the first light-emitting structures and including a first sub-electrode layer and a second sub-electrode layer that are stacked, where the first sub-electrode layer includes electrode blocks spaced from each other, an orthographic projection of each of the electrode blocks on the array substrate covers an orthographic projection of at least one first electrode on the array substrate, the second sub-electrode layer connects at least a part of adjacent electrode blocks of the electrode blocks, and transmittance of the second sub-electrode layer is greater than transmittance of the electrode blocks.

First claim

What is claimed is:

1. A light-transmitting display panel comprising:
an array substrate;
a plurality of first electrodes located on the array substrate;
a plurality of first light-emitting structures, each of the first light-emitting structures being located on a respective first electrode of the plurality of first electrodes; and
a second electrode layer group located on each first light-emitting structure and comprising a first sub-electrode layer and a second sub-electrode layer that are stacked, wherein the first sub-electrode layer comprises a plurality of electrode blocks spaced from each other, an orthographic projection of each of the plurality of electrode blocks on the array substrate covers an orthographic projection of at least one of the plurality of first electrodes on the array substrate, the second sub-electrode layer connects at least a part of adjacent electrode blocks of the plurality of electrode blocks, a transmittance of the second sub-electrode layer is greater than a transmittance of the plurality of electrode blocks, each first electrode of the plurality of first electrodes, a corresponding first light-emitting structure, a corresponding second electrode layer group form a first sub-pixel, the plurality of electrode blocks are arranged in multiple columns, the multiple columns are arranged along a first direction, each of the multiple columns comprises multiple of the plurality of electrode blocks arranged at intervals along a second direction, the second direction is perpendicular to the first direction, the second sub-electrode layer comprises multiple connecting units arranged along the first direction, adjacent connecting units of the multiple connecting units are spaced from each other along the first direction, a slot is defined between the adjacent connecting units, each of the connecting units interconnects the multiple of the plurality of electrode blocks in a corresponding column of the multiple columns, each of the connecting units comprises multiple connecting blocks arranged at intervals along the second direction, and a plurality of slits, each slit of the plurality of slits is defined between adjacent two connecting blocks of one connecting unit, the slit exposes a part of the electrode block, and each of the connecting blocks connects electrode blocks of the plurality of electrode blocks adjacent in the second direction, an orthographic projection of each of the connecting blocks on the array substrate overlaps orthographic projections of two electrode blocks adjacent in the second direction on the array substrate respectively.

2. The light-transmitting display panel according to claim 1 , wherein a shape and a size of an orthographic projection of each of the connecting blocks on the array substrate are the same as a shape and a size of the orthographic projection of each of the plurality of electrode blocks on the array substrate, and a spacing between the electrode blocks adjacent in the second direction is smaller than a length of the electrode block in the second direction.

3. The light-transmitting display panel according to claim 1 , wherein the first sub-electrode layer comprises an ytterbium layer.

4. The light-transmitting display panel according to claim 1 , wherein the second sub-electrode layer comprises an indium tin oxide layer or an indium zinc oxide layer.

5. The light-transmitting display panel according to claim 1 , wherein an orthographic projection of each of the at least one first light-emitting structure on the array substrate is composed of one first shape unit or composed of two or more first shape units joined together, and the first shape unit comprises at least one shape selected from a group consisting of a circle, an oval, a dumbbell, a gourd, and a rectangle.

6. The light-transmitting display panel according to claim 1 , wherein the orthographic projection of each of the first electrodes on the array substrate is composed of one second shape unit or composed of two or more second shape units, and the second shape unit comprises at least one shape selected from a group consisting of a circle, an oval, a dumbbell, a gourd, and a rectangle.

7. The light-transmitting display panel according to claim 1 , wherein transmittance of the light-transmitting display panel is greater than or equal to 15%.

8. A display panel comprising a first display region and a second display region adjoining each other, wherein a transmittance of the first display region is greater than a transmittance of the second display region and the first display region of the display panel is configured as the light-transmitting display panel according to claim 1 , and further comprising:
a plurality of third electrodes located on the array substrate and located in the second display region;
a plurality of second light-emitting structures, each of the second light-emitting structures being located on one of the third electrodes; and
a plurality of fourth electrodes, each of the fourth electrodes being located on one of the second light-emitting structures, wherein the second sub-electrode layer of the second electrode layer group is electrically connected to the fourth electrodes, each of the third electrodes, a corresponding second light-emitting structure, and a corresponding one of the fourth electrodes form a second sub-pixel, and an area size of the first electrode of the first sub-pixel is smaller than an area size of the third electrode of the second sub-pixel of a same color.

9. The display panel according to claim 8 , wherein the second sub-electrode layer of the second electrode layer group is electrically connected to the fourth electrodes.

10. The display panel according to the claim 1 , wherein the second sub-electrode layer is located on the first light-emitting structure, and the first sub-electrode layer is located on the second sub-electrode layer.

11. The display panel according to claim 1 , wherein the first sub-electrode layer is located on the first light-emitting structure, and the second sub-electrode layer is located on the first sub-electrode layer.

12. The display panel according to claim 1 , further comprising:
an electrical connecting structure, located at a same end along an extension direction of the connecting units, wherein the multiple connecting units are electrically interconnected via the electrical connecting structure.

13. The display panel according to the claim 1 , wherein each electrode of the plurality of first electrodes is a reflective electrode.

14. The display panel according to claim 8 , wherein each electrode of the plurality of third electrodes is a reflective electrode.

Assignees

• Kunshan Govisionox Optoelectronics Co Ltd

Inventors

• Peng Chao Chi
• Liu Mingxing
• Wang Panpan
• Li Weili
• Gan Shuaiyan

Classifications

• H10K59/65

  OLEDs integrated with inorganic image sensors · CPC title

• H10K59/80524

  Transparent cathodes, e.g. comprising thin metal layers · CPC title

• H10K59/80521 Primary

  characterised by their shape · CPC title

• H10K2102/103

  comprising indium oxides, e.g. ITO · CPC title

• H10K59/12

  Active-matrix OLED [AMOLED] displays · CPC title